Search Results for "aux"

SLI400AGM-AUX

Duracell Ultra Start/Stop Car Battery | Group 400 | 200CCA | AGM Auxiliary

What Our Experts Are Saying

Keep your start-stop system running smoothly with this reliable AGM auxiliary battery—maintenance-free, spill-proof, and built for modern vehicle electronics.
Brand:
Duracell Ultra
Format:
BCI Group 400
Cold Cranking Amps:
200
Terminal Type:
M8 Nut and Bolt, NB, Nut and Bolt, P

Compare

SLI401AGM-AUX

Duracell Ultra Start/Stop Car Battery | Group 401 | 170CCA | AGM Auxiliary

What Our Experts Are Saying

This battery is built tough. The Duracell Platinum AGM Auxiliary Car Battery Group 401 | 170CCA delivers reliable backup power for start-stop systems—an exact-fit replacement for select Chevrolet, Jeep, and Mercedes-Benz models.
Brand:
Duracell Ultra
Format:
BCI Group 401
Cold Cranking Amps:
170
Terminal Type:
M8 Nut and Bolt, NB, Nut and Bolt, P

Compare

SLI402RAGM-AUX

Duracell Ultra Start/Stop Car Battery | Group 402 | 430CCA | Platinum AGM Auxiliary

What Our Experts Are Saying

Looking for hassle-free power? The Duracell Ultra Platinum AGM Auxiliary Car Battery Group 402 | 430CCA is a premium, leak-proof battery built for start-stop systems in hybrid, electric, and gas vehicles. Delivers reliable performance and long life.
Brand:
Duracell Ultra
Format:
BCI Group 402R
Cold Cranking Amps:
430
Terminal Type:
SAE, Automotive Post

Compare

Longer Lasting

Duracell Ultra Car Battery | Group 48 | 760CCA | Platinum AGM

Longer Lasting

SLI48AGM

Duracell Ultra Car Battery | Group 48 | 760CCA | Platinum AGM

What Our Experts Are Saying

Get powerful 760 CCA starts and superior recharge performance—this AGM battery handles extreme temps and heavy electronics with long-lasting reliability.
Brand:
Duracell Ultra
Format:
BCI Group 48
Cold Cranking Amps:
760
Terminal Type:
SAE, Automotive Post

Compare

Loading Products to Compare...

We think you might be looking for products that go with a vehicle or device.

Tell us what you're looking for so we can ensure a proper fit!

Showing 1 of 1

What Car Battery Do I Need? A Complete Guide to Group Sizes & Fitment

Power - by Joe Weber - updated on 2/20/2026

Don't guess when replacing your battery! Our guide explains how to find your correct BCI Group Size, how to spot hidden auxiliary batteries, and why sticking to the right specs is critical for your warranty. Get the perfect fit today.